OZ St. Lawrence
GreenfieldSt. Lawrence County, New York · NYISO
At a glance
OZ St. Lawrence is a greenfield datacenter candidate site in St. Lawrence County, New York, scoring 52.6/100 DC Readiness — 56th of 94 scored sites in the county. It sits in the NYISO grid region and the NIAGARA MOHAWK POWER CORP. service territory, where interconnection has averaged 4.3 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
First statewide moratorium (2026): 1-yr hold on certain permits for large DCs + impact study.
Moratorium/permit hold targets large datacenters.
Incentive detail: Excelsior Jobs Program tax credits; IDA property tax abatements (PILOT); Empire State Digital Gaming.
Site location
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How does OZ St. Lawrence compare with other sites in St. Lawrence County?
OZ St. Lawrence ranks 56th of 94 scored candidate sites in St. Lawrence County. Its 52.6/100 is roughly in line with the county average of 53.5. It is roughly in line with the New York average of 54.0 and roughly in line with the national average of 53.2.
Against the New York average, its strongest sub-score is water (90 vs 90) and its weakest is fiber connectivity (53 vs 76). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is OZ St. Lawrence to power, fiber and other datacenters?
The nearest located transmission bottleneck is COLTON 115 FLATROCK 115 1 (NYISO), 30 miles away. For connectivity, the nearest internet exchange facility is Westelcom Networks Watertown at 53.5 miles. 10 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Old Main, 25.8 miles away.
What are the flood, water and hazard risks at OZ St. Lawrence?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 0.50 on a 0–5 scale. No mapped wetlands are recorded on the parcel. A Superfund site is nearby (FRARY FUNERAL HOME). At the county level, FEMA's National Risk Index rates St. Lawrence County "Relatively High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in St. Lawrence County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MASSENA | Substation-Adjacent | 765 kV | 1,000 MW | 4.3 yrs | 65.1 |
| City of Ogdensburg | Brownfield | 115 kV | 1 MW | 4.3 yrs | 59.3 |
| TAP140335 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.5 |
| UNKNOWN130198 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.4 |
| TAP140319 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.3 |
| UNKNOWN125639 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 56.8 |
| UNKNOWN127601 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 56.7 |
| TAP140337 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 56.7 |
OZ St. Lawrence: common questions
What is the DC Readiness score of OZ St. Lawrence?
OZ St. Lawrence scores 52.6/100 on the GridCensus DC Readiness scale, rated fair. It ranks 56th of 94 scored sites in St. Lawrence County. The St. Lawrence County average is 53.5 and the New York average is 54.0.
Which electric utility serves OZ St. Lawrence?
NIAGARA MOHAWK POWER CORP. (investor owned) holds the retail service territory that contains the site; its holding company is NATIONAL GRID GROUP PLC.
What grid region is OZ St. Lawrence in?
OZ St. Lawrence is in the NYISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
Is OZ St. Lawrence in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
Who owns OZ St. Lawrence?
Parcel records list the owner as Finley, Thomas A (LC) (private land).
How far is OZ St. Lawrence from an internet exchange?
The nearest internet exchange facility is Westelcom Networks Watertown, about 53.5 miles away; 10 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “OZ St. Lawrence, St. Lawrence County, NY”, https://gridcensus.com/datacenter-sites/new-york/st-lawrence-county/oz-st-lawrence-0dabd1ca (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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